//#define _CRT_SECURE_NO_WARNINGS 1
//#include <stdio.h>
////main()
////{
////	int a = 1, b = 2;
////	a = a + b;  b=a-b; a=a-b;
////	printf("%d,%d\n", a, b);
////}
//
////main()
////{
////	double d;  float f;  long l;  int i;
////	d = 20 / 3;
////	i = f = l = d = 20 / 3;
////		printf("%d %ld %.1f %.1f\n", i, l, f, d);
////}
//
//
////main()
////{
////	double d = 3.2;  int x, y;
////	x = 1.2; y = (x + 3.8) / 5.0;
////	printf("%d\n", d * y);
////}
//
////main()
////{
////	int a = 0, b = 0;
////	a = 10; b = 20; printf("a+b=%d\n", a + b);
////}
//
////main()
////{
////	int x, y, z;
////	x = y = 2;  z = 3;
////	y = x++ - 1;  printf("%d %d ", x, y);//3 1 x=3 y =1
////	y = ++x - 1;  printf("%d %d\n", x, y); //   x=4 y=3
////	y = z-- - 1;  printf("%d %d ", z, x);// z=2 x=4
////	y = --z - 1;  printf("%d %d\n", z, x);
////}
//
////main()
////{
////	int x, y, z;
////	x = y = 1;
////	z = x++, y++, ++y;
////	printf("%d,%d,%d\n", x, y, z);
////}
//
////main()
////{
////	int x = 4, y = 7;
////	x -= y;    y += x;//x=-1 y=4
////	printf("%d  %d\n", x, y);
////}
//
////main()
////{
////	unsigned short a = 65536;  int b;
////	printf("%d\n", b = a);
////}
//
////#include <stdio.h>
////main()
////{
////	char c1, c2, c3, c4, c5, c6;
////	scanf("%c%c%c%c", &c1, &c2, &c3, &c4);
////	c5 = getchar();  c6 = getchar();
////	putchar(c1);   putchar(c2);
////	printf("%c%c\n", c5, c6);
////}
//
////main()
////{
////	int  a = 2, b = -1, c = 2;
////	if (a < b)
////		if (b < 0) c = 0;
////		else c++;
////	printf("%d\n", c);
////	int k = -3;
////	if (k <= 0) printf("####");
////	else     printf("&&&&");
////}
//
////main()
////{
////	int a = 0, b = 0, c = 0, d = 0;
////	if (a = 1) b = 1; c = 2;
////	else    d = 3;
////	printf("%d,%d,%d,%d\n", a, b, c, d);
////}
////main()
////{
////	int x1 = 1, x2 = 0, x3 = 0;
////	if (x1 = x2 + x3) printf("****");
////	//else printf("####");
////	int a = 1, b = 3, c = 5, d = 4;
////	int x = 0;
////	if (a < b)
////		if (c < d)
////			x = 1; 
////		else if (a < c)
////			if (b < d)x = 2; 
////			else x = 3; 
////		else x = 6; 
////	else x = 7;
////	printf("%d", x);
////	float c = 1.2;
////	switch ((int)c)
////	{
////	case 1+2:
////	default:
////		break;
////	}
////}
//
////main()
////{
////	int x = 1, y = 0, a = 0, b = 0;
////	switch (x)
////	{
////	case 1:
////		switch (y)
////		{
////		case 0:a++; break;
////		case 1:b++; break;
////		}
////	case 2:a++; b++; break;
////	}
////	printf("a=%d,b=%d\n", a, b);
////}
//
////main()
////{
////	int i = 010, j = 10;
////	printf("%d,%d\n", ++i, j--);
////}
////#include <stdio.h>
////main()
////{
////	printf("%d%d%d\n", '\0', '\0', '\0');
////}
//
////main()
////{
////	int a;    float b, c;
////	scanf("%2d%2f%2f", &a, &b, &c);
////	printf("a=%d,b=%.1f,c=%.0f", a, b, c);
////}
//
////main()
////{
////	char ch1, ch2;
////	ch1 = 'A' + '5' - '3';  ch2 = 'A' + '6' - '3';
////	printf("%d,%c\n", ch1, ch2);
////	int a = 0;
////	printf("%d\n", (a = 3 * 5, a * 4, a + 5));
////
////}
////main()
////{
////	/*int x = 10;
////	printf("%d,%d\n", --x, --x);*/
////	int x = 3;
////	if ((x % 2) ? printf("**%d", x) : printf("##%d\n", x));
////}
////int main()
////{
////	int m = 5;
////	switch (m / 2)
////	{
////	case 1: m++;
////	case 2: m += 3;//8
////	case 5: m += 6; break;//14
////	default: m -= 7;
////	}
////	printf("%d\n", m);
////	return 0;
////}
//main()
//{
//	int a = 9, b = 2;
//	float x =6.6f, y = 1.1, z;
//	z = a / 2 + b * x / y + 1 / 2;//4+2*x/	1.1;
//	//16*1.1-4 = 2*x
//	//17.1-4 = 2*x
//	//13.1 = x;
//	//13.1/2 = x;
//
//	printf("%5.2f\n", z);
//}